EEVBLOG|UEI 121GW Part 4, Debunking Dave's Switch Test, Alignment and Lots More

It's been over two years since I looked at the 121GW prototype. I wanted to allow Dave and UEI plenty of time to address the problems before reviewing it.

In Part 4, we compare the 121GW's bargraph, 3dB point and freq counter with other DMMs. We then attempt to align one if the old production meters. We finish up repeating one of Dave's recent tests. There's a few other other bits sprinkled along the way.

One of the problems I ran into back in 2017 while looking at the prototype was with the VA mode. Roger, who ran the YT channel KainkaLabs, repeated my tests. He did a really nice job explaining the problem and how to work around it. I doubt I will go over this problem again, so if you're interested, I suggest you watch his video.


Feel free to join the thread:


An old video explaining the transients I apply:


The data for the meters I have tested may be found here:

Answers to Frequently Asked Questions may be found here:

EEVBLOG UEI 121GW production DMM meter review,